Control of diesel particulate emission based on Ag/CeO x /FeO y catalysts supported on cordierite

Potassium‐Activated Wire Mesh: A Stable Monolithic Catalyst for Diesel Soot Combustion

“…In addition, accelerated thermal stability tests were also conducted. Before the TPO tests, the K-deposited wire mesh was treated at 850°C for 4 h under 8 vol % water in an air flow (50 mL min -1 ) [22].…”

Effect of Potassium Nitrate Modification on the Performance of Copper‐Manganese Oxide Catalyst for Enhanced Soot Combustion

“…[7] Various catalysts have been developed for soot combustion to date, for example, noble-metalbased catalysts, [8] transition metal (mixed) oxides, [9] perovskite and/or perovskite-like mixed oxides, [10] spinel mixed oxides, [11] alkali/alkaline earth metal compounds, [12] and the famousc eriabased oxides. [19,20] For example, Wei et al [21] prepared a3Do rdered mac-roporousC e 0.8 Zr 0.2 O 2 -supported Au catalystw ithal ow T f of 400 8C, andr ecently,N ascimentoe tal. [19,20] For example, Wei et al [21] prepared a3Do rdered mac-roporousC e 0.8 Zr 0.2 O 2 -supported Au catalystw ithal ow T f of 400 8C, andr ecently,N ascimentoe tal.…”

“…[13][14][15][16][17][18] Among these, supported noble-metal-based catalysts are the best candidates for sootc ombustion and show low values of the characteristic finishing temperature (T f ). [19,20] For example, Wei et al [21] prepared a3Do rdered mac-roporousC e 0.8 Zr 0.2 O 2 -supported Au catalystw ithal ow T f of 400 8C, andr ecently,N ascimentoe tal. [20] synthesized Ag/CeO x / FeO y catalysts supported on cordierite that also have a T f of 400 8C.…”

“…[19,20] For example, Wei et al [21] prepared a3Do rdered mac-roporousC e 0.8 Zr 0.2 O 2 -supported Au catalystw ithal ow T f of 400 8C, andr ecently,N ascimentoe tal. [20] synthesized Ag/CeO x / FeO y catalysts supported on cordierite that also have a T f of 400 8C. However, the scarcity,h igh cost, easy sintering, and sensitivity to sulfur poisoning all pose severe limitations to their large-scale industrial application.…”

Highly active MnOx–CeO2catalyst for diesel soot combustion

“…Additionally, many researches demonstrate that the introduction of macropores or large voids into the catalysts can greatly facilitate the heat and mass transfer as well as improve the contact between soot and the catalysts, eventually to reach a high activity towards soot oxidation. 11,[20][21][22][23][24][25] For example, Wei et al 23 synthesized a three-dimensionally ordered macroporous (3DOM) LaFeO 3 catalyst loaded with tiny golden nanoparticles ($2.9 nm), showing the temperature of maximum soot combustion rate (T m ) at 366 C under loose contact mode between soot and catalyst. Recently, Nascimento et al 25 synthesized Ag/CeO x /FeO y catalysts supported on cordierite for the control of diesel soot emission, showing further decreased T m (334 C), and T f (nishing soot combustion temperature, 400 C), exhibiting great potential in application.…”